random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) IPVS: ftp: loaded support on port[0] = 21 ================================================================== BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:345 [inline] BUG: KASAN: slab-out-of-bounds in pfkey_msg2xfrm_state net/key/af_key.c:1181 [inline] BUG: KASAN: slab-out-of-bounds in pfkey_add+0x272d/0x3210 net/key/af_key.c:1499 Read of size 8192 at addr ffff8801ae0e0b00 by task syz-executor0/4567 CPU: 0 PID: 4567 Comm: syz-executor0 Not tainted 4.17.0-rc2+ #43 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 check_memory_region_inline mm/kasan/kasan.c:260 [inline] check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267 memcpy+0x23/0x50 mm/kasan/kasan.c:302 memcpy include/linux/string.h:345 [inline] pfkey_msg2xfrm_state net/key/af_key.c:1181 [inline] pfkey_add+0x272d/0x3210 net/key/af_key.c:1499 pfkey_process+0x7cc/0x8a0 net/key/af_key.c:2819 pfkey_sendmsg+0x5f4/0x1050 net/key/af_key.c:3658 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __compat_sys_sendmsg net/compat.c:754 [inline] __do_compat_sys_sendmsg net/compat.c:761 [inline] __se_compat_sys_sendmsg net/compat.c:758 [inline] __ia32_compat_sys_sendmsg+0x7a/0xb0 net/compat.c:758 do_syscall_32_irqs_on arch/x86/entry/common.c:323 [inline] do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:394 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f7ecb9 RSP: 002b:00000000ff8f3d6c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020196fe4 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 4567: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 __do_kmalloc_node mm/slab.c:3682 [inline] __kmalloc_node_track_caller+0x47/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.38+0x3a/0xe0 net/core/skbuff.c:137 __alloc_skb+0x14d/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:987 [inline] pfkey_sendmsg+0x250/0x1050 net/key/af_key.c:3645 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __compat_sys_sendmsg net/compat.c:754 [inline] __do_compat_sys_sendmsg net/compat.c:761 [inline] __se_compat_sys_sendmsg net/compat.c:758 [inline] __ia32_compat_sys_sendmsg+0x7a/0xb0 net/compat.c:758 do_syscall_32_irqs_on arch/x86/entry/common.c:323 [inline] do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:394 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8801ae0e0ac0 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 64 bytes inside of 512-byte region [ffff8801ae0e0ac0, ffff8801ae0e0cc0) The buggy address belongs to the page: page:ffffea0006b83800 count:1 mapcount:0 mapping:ffff8801ae0e00c0 index:0x0 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffff8801ae0e00c0 0000000000000000 0000000100000006 raw: ffffea0006b8da20 ffffea0006c3d5a0 ffff8801da800940 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801ae0e0b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801ae0e0c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8801ae0e0c80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ^ ffff8801ae0e0d00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ffff8801ae0e0d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================